# LibTmux.Query.Link.index

- **Package:** libtmux-haskell
- **Language:** Haskell
- **Kind:** function
- **Source:** https://github.com/libtmux/libtmux-haskell/blob/663e212622a02aa74a9bdc8ff71e2b45fcb1d4d5/src/LibTmux/Query/Link.hs#L25
- **Page:** https://libtmux.org/en/haskell/latest/reference/libtmux-query-link-v-index/

```haskell
index :: Field WindowLink WindowIndex
```

Signature types: [`Field`](/en/haskell/latest/reference/libtmux-query-t-field/), [`WindowLink`](/en/haskell/latest/reference/libtmux-snapshot-t-windowlink/), [`WindowIndex`](/en/haskell/latest/reference/libtmux-value-t-windowindex/).

Window-link index within the session; reindexing can change it.

## Referenced declarations

- [`LibTmux.Query.Field`](/en/haskell/latest/reference/libtmux-query-t-field/) (data type)
- [`LibTmux.Value.WindowIndex`](/en/haskell/latest/reference/libtmux-value-t-windowindex/) (data type)
- [`LibTmux.Snapshot.WindowLink`](/en/haskell/latest/reference/libtmux-snapshot-t-windowlink/) (data type)